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Photon production from non-equilibrium QGP in heavy ion collisions

Published inJournal of Physics. G, Nuclear and Particle Physics, vol. 30, no. 8, p. S1031-S1036
Publication date2004
Abstract

We present a calculation of thermal photon production, i.e. photons from secondary interactions among particles produced in heavy ion collisions at collider energies. This is done within the framework of hydrodynamics. We take into account the lack of chemical equilibrium in QGP. It turns out that the main effects from the chemical non-equilibrium composition of QGP, reduction of particle number and increase in temperature, nearly cancel in the photon spectrum.

Citation (ISO format)
GELIS, F. et al. Photon production from non-equilibrium QGP in heavy ion collisions. In: Journal of Physics. G, Nuclear and Particle Physics, 2004, vol. 30, n° 8, p. S1031–S1036. doi: 10.1088/0954-3899/30/8/053
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